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mina_signmessage.md

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description
This method is used to sign message.

mina_signMessage

Params

type SignMessageArgs = {
    // The message that need to sign.
    readonly message: string
}

Result

interface SignedData {
    // sign account address.
    publicKey: string;
    // sign message.
    data: string;
    // sign result.
    signature: {
        field: string;
        scalar: string;
    }
}

interface ProviderError extends Error {
    message: string; // error message.
    code: number; // error code.
    data?: unknown; // error body. 
}


Promise<SignedData | ProviderError>

Errors
1001 User disconnect, need connect Auro Wallet. Can not get connected account.
1002 The request was rejected by the user.
23001 Origin dismatch. Check origin safe.

Example

Request

const content = `Click "Sign" to sign in. No password needed!

This request will not trigger a blockchain transaction or cost any gas fees.

I accept the Auro Test zkApp Terms of Service: ${window.location.href}

address: ${currentAccount}
iat: ${new Date().getTime()}`;

await window.mina?.signMessage({ message: content }).catch((err: any) => err);

Result

// successful result.
{
  "signature": {
    "field": "13468724101429370746602596170094552502200193721398063751467629418902449650534",
    "scalar": "5638584219029837254561020594864591092072844530049610703222272818700774330907"
  },
  "publicKey": "B62qr2zNMypNKXmzMYSVotChTBRfXzHRtshvbuEjAQZLq6aEa8RxLyD",
  "data": "Click \"Sign\" to sign in. No password needed!\n\nThis request will not trigger a blockchain transaction or cost any gas fees.\n\nI accept the Auro Test zkApp Terms of Service: http://localhost:3000/\n\naddress: \niat: 1699294808439"
}

// can not get connect address.
{
  "code": 1001,
  "message": "User disconnect, please connect first."
}

// user reject.
{
  "code": 1002,
  "message": "User rejected the request."
}